ST232_06 datasheet(6/19 Pages) STMICROELECTRONICS

No de pièce	ST232

Description	5V Powered multi-channel RS-232 drivers and receivers

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

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Electrical characteristics

ST232

6/19

Table 5.

Receiver electrical characteristics

(C1 - C4 = 0.1µF, VCC = 5V ± 10%, TA = -40 to 85°C, unless otherwise specified. Typical

values are referred to TA = 25°C).

Symbol

Parameter

Test

Min.

Typ.

Max.

Unit

VRIN

Receiver input voltage

operating range

-30

30

V

RRIN

RS-232 Input resistance

TA = 25°C, VCC = 5 V,

VRIN = 5V

35

7

K

Ω

VRIL

RS-232 Input threshold low

TA = 25°C, VCC = 5 V

0.8

1.2

V

VRIH

RS-232 Input threshold high

TA = 25°C, VCC = 5 V

1.7

2.4

V

VRIHYS

RS-232 Input hysteresis

VCC = 5V

0.2

0.5

1

V

VROL

TTL/CMOS Output voltage low

IOUT = 3.2mA (to VCC)0.4

V

VROH

TTL/CMOS Output voltage high IOUT = -1mA (to GND)

3.5

VCC-0.4

V

ISCR

Receiver output short circuit

current

±10

mA

tDR

Receiver propagation delay

CL = 150pF

(1)

0.3

1

µs

1.

RS-232 in to TTL-CMOS out (from 50% to 50%)

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